In the fictional Chu Dynasty, Su Jin disguised herself as a man to take part in the imperial examination in order to overturn the case for her father (who was falsely accused of corruption). She won the first prize due to her talent and was appointed as the head of the Ministry of Civil Affairs, but she was questioned because of her "frailty". When Su Jin was investigating the case, she cooperated with Xiao Yu, the censor in charge of supervision, and the two gradually developed a tacit understanding in solving the "Granary Deficit Case" and "Official Corruption Case". When Xiao Yu discovered that Su Jin's daughter was pregnant, his father's injustice also surfaced. It turned out that the frame-up was a trap set by traitorous officials in the court to seize power.
